CFPS Special Hazard Suppression 5

Question 1

Which NFPA standard covers water mist fire protection systems?

Accepted Answer

NFPA 750

Answer

NFPA 13

Answer

NFPA 15

Answer

NFPA 2001

Question 2

Water mist systems suppress fires primarily through which combined mechanisms?

Accepted Answer

Cooling of the flame and fuel plus inerting through steam generation

Answer

Oxygen displacement below 15% and fuel cooling only

Answer

Chemical chain reaction interruption and smothering

Answer

Physical fuel removal and radiation blocking only

Question 3

Per NFPA 750, high-pressure water mist systems are defined as systems operating at nozzle pressures:

Accepted Answer

Greater than 500 psi (34.5 bar)

Answer

Below 175 psi (12.1 bar)

Answer

Between 175 and 500 psi (12.1–34.5 bar)

Answer

Between 100 and 300 psi (6.9–20.7 bar)

Question 4

Fire suppression systems installed in spray application booths must comply with which primary standard in addition to any applicable suppression system standard?

Accepted Answer

NFPA 33 (Spray Application Using Flammable or Combustible Materials)

Answer

NFPA 30 (Flammable and Combustible Liquids Code) only

Answer

NFPA 13 (Sprinkler Systems) exclusively

Answer

NFPA 17A (Wet Chemical Systems)

Question 5

Clean agent total flooding systems are preferred over CO2 for protecting data centers primarily because:

Accepted Answer

Clean agents are safe for personnel at design concentrations and do not damage equipment

Answer

Clean agents are significantly less expensive to install and maintain

Answer

CO2 systems are not listed for Class C electrical hazards

Answer

Clean agents require smaller cylinder storage footprints in all cases

Question 6

The room integrity test (door fan test) performed before commissioning a total flooding gaseous suppression system is used to determine:

Accepted Answer

The enclosure leakage area to predict whether agent concentration can be maintained for the required hold time

Answer

Structural wall panel strength under suppression pressure

Answer

HVAC system airflow rates during normal operation

Answer

The room's heat loss coefficient for thermal modeling

Question 7

Suppression systems on marine vessels and offshore platforms must comply with applicable NFPA standards AND which additional regulatory framework?

Accepted Answer

IMO regulations (SOLAS—Safety of Life at Sea)

Answer

FAA Advisory Circulars for aviation fire suppression

Answer

OSHA 29 CFR 1910.157 portable extinguisher rules only

Answer

EPA Risk Management Program requirements exclusively